Petzl LASER SONIC - Manual (Page 3)

3 Notice P70 LASERSONIC réf. : P70500-B
(GB) Ice screw
Limitations on use
Petzl Charlet ice screws conform to the safety
requirements of the 89/686/CE directive on
personal protective equipment (PPE) and to the
UIAA requirements with the exception of the 100
mm versions (ice screws for direct aid only, not
intended for protection against falls from height).
Nomenclature of parts
(1a) Attachment point only,
(1b) Attachment point with integral rotating
crank, (2) Tube, (3) Drill bit.
Principal materials: chrome molybdenum steel.
Checking, points to verify
Before each use, carry out a visual check of the
condition of the ice screw. If you note any cracks,
twisting of the tube, deformation of the drill bit
or any other structural anomaly, do not use the
ice screw.
Diagram 1. Maintenance
After each use, dry out your ice screws.
Spray with a lubricant in order to prevent
corrosion and facilitate clearing of the tube.
Regularly check the sharpness of the teeth of the
drill bit and sharpen them carefully as necessary.
Use only a fi le, taking care not to modify the
geometry of the cutting edges. Sharpening is a
delicate operation, carrying the risk of noticeably
affecting the performance of your ice screws.
Instructions for use
Diagram 2. Strength
The CE directive requires a minimum pull-out
strength of 10 kN. The UIAA requires a minimum
of 15 kN. Do not confuse the strength of the
screw under testing conditions with the holding
power of the screw under actual conditions of
use. The latter can vary according to the quality
of the ice. In general, the quality of the ice
improves with depth.
Diagram 3. Placement
Choose the thickest and most homogeneous
ice possible. Choose the length of the ice screw
according to the thickness. WARNING, do not
force if the ice screw touches the rock as this can
seriously damage the drill bit.
Diagram 4. Advice on placement
Clean away poor ice or unconsolidated surface
ice in order to fi nd homogeneous, solid ice.
Position yourself in order to have the elbow bent
at 90° and the hand at hip level. This is optimal
for effi cient application of force and precision.
Use the rule of three to start:
- strike three times (position of the tube at 90°),
- turn three times “there and back“, clear the tube
if necessary,
- Make three complete turns clockwise.
Screw in the ice screw completely, as far as the
attachment point, with the aid of the crank. A
continuous cylinder of ice should emerge from
the screw.
Place an ice screw immediately upon leaving the
belay to reduce the fall factor. Aim to reduce the
potential impact force on the ice screw by careful
management of the path followed by the rope.
Use a NITRO energy absorbing quickdraw to
reduce the impact force.
Our ice screws have a polished fi nish to refl ect
the solar radiation as much as possible, so
reducing heating of the metal. WARNING over a
long period of exposure to the sun’s rays (top-
rope anchors for example) the holding power
of the ice screw can be reduced (because of the
heating effect).
Diagram 5. Removal
Turn the screw manually in an anticlockwise
direction. The LASER SONIC is impossible to drop
on removal as long as it remains attached to the
rope.
Remove the cylinder of ice inside the screw
(blocking the tube of the screw) by tapping the
attachment point, straightaway if possible. Never
tap on the threads as this can cause damage.
If the ice cylinder is jammed in, use the
MULTIHOOK threading tool, without scratching the
inside of the tube.
Carrying (walking in and out)
Replace the end covers after use to protect the drill
bit as well as the rest of your equipment which
could be damaged by the sharp teeth. Use of a
storage bag (e.g. FAKIR) is recommended.
(GB) ENGLISH